Upper limb Skeleton Flashcards
c3 dermatome
trap area
c4 dermatome
front delt area
c5 dermatome
lat to cubital fossa, upper arm
c6 dermatome
lat part of lower arm, thumb and half of index
c7 dermatome
half of index + ring finger, middle finger
c8 dermatome
half of ring and pinky
t1 dermatome
medial to cubital fossa, upper arm
t2 dermatome
right above armpit medially
t3/4 dermatome
arm pit area
cardiac pain projects to what dermatomes
t1,2,3 C8
when does the clavical ossify
5-6th w of embryo (first and last bone to completel ossify)
at what age is the clavical completely ossified`
25-31
what does congenital failure of formation of central part of clavical (pseudo arthritis) present as
produces a painless promenance in middle third of right clavicle
-just secondary ossification center develops
where and what is compressed in thoracic outlet syndrome
compression of the
- subclavian artery and vein
- inf trunk of the brachial plexus
under medial half of clavical
weakest part of clavical and what happens in a fracture
middle-later third
-medial part is pulled up due to SCM
sup and inf angle and spine are at what spinal cord lvl
sup- T2
inf- T7
spine- T3
suprascapular notch is bridged by
sup transverse scapular lig
spiniglenoid notch is bridged by
inf transverse scapular lig
what nerve will a spinoglenoid notch cyst put pressure on
compression on supreascapular nerve (that runs deep to sup transverse lig)
what area can you palpate to feel the coracoid process
deltopectoral triangle
where is the surgical neck of the humerus located and what is it a common site for
- bw the post greater and ant lesser tubercles
- site of fracture
how many facets does the greater tubercle have
sup (supraspinatus)
middle (infraspinatus)
inferior( teres minor)
in a fracture of the surgical neck of humerus what vessels would be affected
Post circumflex humeral a + v
Axillary n
In a transverse fracture of the humerus what muscles pull what
delt will pull upper frag lat and distal frag is pulled by biceps brachii
where is the supinator fossa located
-is on the lateral aspect of prox epiphysis just inf to radial notch of ulna
what styloid is lower distally
radius (alothough both are palpable)
what makes up the medial and lat carpal eminence
med- hook of hamate + pisiform
lat- tub of trapezium + tubercle of scaphoid
colles fracture
distal fragments of radius overrides rest of bone
Most frequent fractured carpal bone and complications associated w it
-fracture of scaphoid
- fall on palm when hand is abducted
- often misdiagnosed
- poor blood supply so avascular necrosis of prox scaphoid may occur
palpable surfaces anteriorly
- sup border of clavical
- ac joint
- acromion
- greater and lesser tubercle
- coracoid process
- lat + med epicondyle
- lat border of distal radius
- head of ulna distal
- tubercle of trapezium
- pisiform
- hook of hamate
- heads of metacarpals andheads of phalanges
palaple surfaces post
- sup border of cavical
- acromion
- greater tub
- spine of scap
- med and inf border of scap
- med and lat epicondyle
- post border of ulna
- lat and med part of distal radius and ulna
- capitate
- post aspects of metacapals and phalanges
